A community for students.
Here's the question you clicked on:
← 55 members online
 0 viewing
mustry
 2 years ago
prov that sin3A=?
mustry
 2 years ago
prov that sin3A=?

This Question is Closed

hba
 2 years ago
Best ResponseYou've already chosen the best response.1sin3A= something which we have to prove ?

ajprincess
 2 years ago
Best ResponseYou've already chosen the best response.2Prove sin3A=? sin3A=sin(A+2A) use sin(A+B)=sinAcosB+cosAsinB sin2A=2sinAcosA

mustry
 2 years ago
Best ResponseYou've already chosen the best response.0no ur suppose to expand it

mustry
 2 years ago
Best ResponseYou've already chosen the best response.0sin(2A+A)=sin2AcosA+cos2AsinA

ajprincess
 2 years ago
Best ResponseYou've already chosen the best response.2cos2A=cos^2Asin^2A =12sin^2A =2cos^2A1

mustry
 2 years ago
Best ResponseYou've already chosen the best response.0OKAY put it in the equestn
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.